package dao;

import java.util.List;

import model.Din;
import model.User;

public interface DinDao {
   int insertDin(Din o);
   int deleteDin(int commodityId);
   int updateDin(Din o);
   List<Din> SelectAll();
   List<User> selectUser();
   int insertUser(User u);
   int isIdExist(int commodityId);
}
